Quick Hits: Cubs, Zambrano, Amaro, McDonald

Cubs manager Dale Sveum says his team has no intention of releasing struggling reliever Carlos Marmol and eating the rest of his $9.8MM salary, Paul Sullivan of the Chicago Tribune reports. "We've come to find out that he has trouble with the last three outs," says Sveum. "But somebody has to pitch the other innings, and he's done a pretty good job in that role." Marmol allowed four runs in the ninth as the Cubs lost to the Mets 4-3 on Sunday. Here are more notes from around the National League.

Phillies starter Jonathan Pettibone struggled Saturday, but GM Ruben Amaro Jr. says that Carlos Zambrano won't be replacing Pettibone right away, Jim Salisbury of CSNPhilly.com writes. "Not based on what I saw his last outing, not in my mind," says Amaro. "I’d like to see him pitch again [in the minors]. We’ll keep a close eye on his starts and how effective he is. But he’s not ready yet in my mind." Zambrano has an out clause July 1. He allowed two runs in five innings in his first outing for Triple-A Lehigh Valley on Thursday, striking out five and walking four. His fastball did not exceed 88 MPH.

Pirates GM Neal Huntington says James McDonald's future with the team could be in jeopardy, the Pittsburgh Tribune-Review's Karen Price writes in a pair of tweets. "As the clock ticks we’ll have to make a determination as to where James best fits in this group, on this club, or does he fit," says Huntington. "That’s a question to be answered ultimately by James McDonald." McDonald, once viewed as a potential franchise building block after promising seasons in 2010 and 2011 and a great first half in 2012, has fallen out of favor after collapsing down the stretch last year and posting a 5.76 ERA with 20 walks in six 2013 starts. He has also struggled in his rehab starts since landing on the disabled list with shoulder discomfort.